I come from Argentina, where the government isn’t obliged by law to give away public information to citizens or NGOs that request it. There are, though, some access-to-information projects ready to be discussed in Congress in the next few days. Still, this is why I’m always amazed by all the open data initiatives in the USA and UK.
AbreDatos 2010 consists of two days’ programming by groups of 4 developers building websites, apps, widgets or mashups with at least one source coming from a public organization in digital format (APIs, XML, CSV, SPARQL / RDF, HTML, PDF, scanned images). Many of those sources can be found in datospublicos.jottit.com.
Of course the initiative wants to encourage the opening up of public data and transparency of administrations, and some of the projects are very interesting (my favorite is a website that shows if Congress staff really earn their salaries).
One to keep an eye on.